Lectrosonics UDR200b User Manual download pdf (Page 21)

Wireless Diversity Receiver

Output Group Frequency and Name - Outputs specific

name/frequency entries stored in non-volatile memory. Each

of the entries, up to a total of 16 in each group, consists of 14

bytes. The first byte is the frequency, and the next thirteen are

the name associated with that frequency.

Host sends command - 18

Host sends data bytes: Byte 1: Group number to down

load to, 1 - 4. Byte 2: Group entry number, 1 - 16.

Host receives data bytes: Byte 1: Frequency, 0 - 255

Bytes 2 - 14: Name

Set Group Frequency and Name - Allows specific name/

frequency associations to be entered in non-volatile memory.

Each of the entries, up to a total of 16 in each group, consists

of 14 bytes. The first byte is the frequency, and the next thir-

teen are the desired name to associate with that frequency.

The name may consist only of capital letters A-Z, numerals 0-

9, and spaces. All thirteen name bytes must be sent, and if

the name is less than 13 characters long. simply pad it with

trailing spaces (ASCII 32). Note that it is prohibited to have

two or more names associated with the same frequency in a

group. In other words, all frequency entries in a given group

must be unique in that group. This does not preclude having

the same frequency in another group.

Host sends command - 17

Host sends data bytes:

Byte 1: Group number to download to, 1 - 4.

Byte 2: Group entry number, 1 - 16.

Bytes 3 and 4: Frequency, 0 - 255

Bytes 5 - 17: Name, can only be ASCII characters A-Z,

0-9, and space.

Host receives data byte: 100, to signify that the data has

been stored in non-volatile memory.

Output Audio Modulation - Outputs the current audio modu-

lation level. A returned value of 120 is equivalent to a 0dB

modulation level (as indicated on the front panel Audio modu-

lation meter). Values greater than 170 indicate Limiting.

Host sends command - 27

Host receives data byte: Audio modulation level, 0 - 255.

Output RF Levels - Outputs the current RF level of channels

A and B. Data values range from 0 - 255, where 0 equals 1uV

(-107dBm) and 255 equals 1mV (-47dBm). The RF level in

dBm can be calculated as RF Level in dBm = -107 + Data

value x .235.

Host sends command - 35

Host receives data bytes: Byte 1: RF Level Channel A, 0 -

255. Byte 2: RF Level Channel B, 0 - 255

Output Pilot Tone Status - Outputs the receiver status with

respect to whether a valid pilot tone is detected.

Host sends command - 34

Host receives data byte: Pilot status, 0 - No pilot tone, 1 -

Pilot tone present

Output Battery Status - Outputs the battery status of the

associated transmitter, if the transmitter is on and the receiver

recognizes the transmitter's pilot tone.

Host sends command - 62

Host receives data byte: Battery status, range between 0

and 28. The following list gives the actual battery voltage

associated with each status number.

0 - Greater than 9.2V (or not available because the

transmitter is not on or the pilot tone is not valid)

1 - Greater than 9.2V (or not available because the

transmitter is not on or the pilot tone is not valid)

2 - 9.2V

3 - 9.1V

4 - 9.0V

5 - 8.8V

6 - 8.7V

7 - 8.6V

8 - 8.5V

9 - 8.4V

10 - 8.3V

11 - 8.1V

12 - 8.0V

13 - 7.9V

14 - 7.8V

15 - 7.7V

16 - 7.6V

17 - 7.5V

18 - 7.4V

19 - 7.4V

20 - 7.3V

21 - 7.2V

22 - 7.2V

23 - 7.0V

24 - 6.8V

25 - 6.7V

26 - 6.6V

27 - 6.5V

28 - Less than 6.5V (i.e. Dead)

Rio Rancho, NM – USA

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Lectrosonics UDR200b User Manual Page 21

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